Windows Update Troubleshooting Checklist
Windows Update can fail for many reasons. This checklist walks you through the most common fixes,...
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Browse labFix PuTTY Connection Refused After Server Restart
You restart your server, open PuTTY, and see "Connection refused". This is a com...
Windows Terminal Network Error: Not Connecting – Fixes
You launch Windows Terminal, type a command that needs network access, and get an error: "Network...
Fix 'Remote Desktop Reset Settings Permission Denied' Error
You try to reset Remote Desktop settings—maybe by deleting the default.rdp file or clearing the M...
Fix Windows Defender Error 0x80073b01 (Crash on Startup)
If Windows Defender crashes on startup with error code 0x80073b01, the antivirus service may be f...
Fix Windows Security High Memory Usage
If you notice that Windows Security (formerly Windows Defender) is using a lot of memory—sometime...